The one-dimensional stacking disorder in the structure of a Ba-behenat
e multibilayer film prepared by the Langmuir-Blodgett (LB) technique w
as studied by X-ray diffraction pattern simulation. The theory of X-ra
y diffraction by disordered lamellar structures was used for intensity
calculations. The formation of an irregular mixed-layer structure, co
nsisting of layers with different heights and different Ba contents, w
as demonstrated.